bad signatures preventing TL2020 update

[AC]

I am getting the same output as before (bad signatures) on all of my machines..

On May 3, 2020 7:01:28 AM EDT, Philip Taylor <P.Taylor at Hellenic-Institute.Uk> wrote:
>AC wrote:
>
>> As of this morning (~6 AM EST, Sun, May 3) attempts to update with
>>
>> tlmgr update --self --all
>>
>> results in the following type of error:
>>
>
>All looks normal here :  early on in the run it reports "not verified:
>gpg unavailable", which I seem to recall it always does here (I confess
>that it has never bothered me), and then goes on to report :
>
>> Microsoft Windows [Version 6.1.7601]
>> Copyright (c) 2009 Microsoft Corporation.  All rights reserved.
>>
>> C:\Windows\system32>tlmgr update --self --all
>> tlmgr.pl: package repository
>http://mirror.ox.ac.uk/sites/ctan.org/systems/texlive/tlnet (not
>verified: gpg unavailable)
>> tlmgr.pl: saving backups to C:/TeX/Live/2020/tlpkg/backups
>> [ 1/48, ??:??/??:??] update: abnt [121k] (53128 -> 54927) ... done
>> [ 2/48, 00:11/01:09:58] update: acro [1137k] (54512 -> 54937) ...
>done
>> [ 3/48, 00:19/11:34] update: animate [3127k] (54543 -> 54874) ...
>done
>> [ 4/48, 00:29/05:03] update: babel [1535k] (54487 -> 54930) ... done
>> [ 5/48, 00:39/05:02] update: biblatex-apa [334k] (54758 -> 54896) ...
>done
>> [ 6/48, 00:46/05:37] update: chemfig [2042k] (54738 -> 54914) ...
>done
>> [ 7/48, 00:54/04:59] update: circuitikz [1132k] (54800 -> 54873) ...
>done
>> [ 8/48, 01:02/05:02] update: comicneue [1048k] (42851 -> 54891) ...
>done
>> [ 9/48, 01:13/05:20] update: context-filter [17k] (48390 -> 54912)
>... done
>> [10/48, 01:20/05:50] update: context-vim [16k] (48391 -> 54949) ...
>done
>> [11/48, 01:27/06:20] update: dynkin-diagrams [813k] (54489 -> 54948)
>... done
>> [12/48, 01:37/06:33] update: euclideangeometry [1023k] (54758 ->
>54897) ... done
>>
>> [13/48, 01:47/06:38] update: expkv-cs [319k] (54674 -> 54939) ...
>done
>> [14/48, 01:56/07:00] update: fontools [167k] (53593 -> 54926) ...
>done
>> [15/48, 02:03/07:20] update: hu-berlin-bundle [257k] (54512 -> 54938)
>... done
>> [16/48, 02:11/07:39] update: jlreq [625k] (53717 -> 54964) ... done
>> [17/48, 02:21/07:52] update: jslectureplanner [1165k] (53672 ->
>54951) ... done
>> [18/48, 02:28/07:37] update: knowledge [811k] (54121 -> 54876) ...
>done
>> [19/48, 02:36/07:36] update: kvmap [116k] (54585 -> 54898) ... done
>> [20/48, 02:43/07:53] update: libertinus-otf [647k] (53871 -> 54872)
>... done
>> [21/48, 02:51/07:57] update: lwarp [3079k] (54586 -> 54965) ... done
>> [22/48, 03:02/07:08] update: optex [1846k] (54650 -> 54893) ... done
>> [23/48, 03:10/06:48] update: pgfornament [2984k] (54670 -> 54941) ...
>done
>> [24/48, 03:19/06:15] update: pst-ovl [32k] (45506 -> 54963) ... done
>> [25/48, 03:26/06:28] update: pxchfon [325k] (53629 -> 54895) ... done
>> [26/48, 03:33/06:35] update: quantikz [456k] (50934 -> 54911) ...
>done
>> [27/48, 03:40/06:41] update: scratch3 [515k] (54435 -> 54916) ...
>done
>> [28/48, 03:47/06:46] update: simplekv [328k] (44987 -> 54915) ...
>done
>> [29/48, 03:55/06:55] update: sourcesanspro [5689k] (54512 -> 54892)
>... done
>> [30/48, 04:11/06:03] update: tcolorbox [4812k] (52809 -> 54928) ...
>done
>> [31/48, 04:21/05:28] update: texlive-docindex [159k] (54859 -> 54943)
>... done
>> [32/48, 04:27/05:34] update: texlive-msg-translations [138k] (54832
>-> 54933) ..
>> . done
>> [33/48, 04:31/05:38] update: texlive-scripts [344k] (54861 -> 54954)
>... done
>> [34/48, 04:39/05:44] update: tkz-tab [363k] (54662 -> 54940) ... done
>> [35/48, 04:49/05:53] update: tlshell [27k] (54861 -> 54921) ... done
>> [36/48, 04:57/06:03] update: translations [507k] (53962 -> 54929) ...
>done
>> [37/48, 05:04/06:07] update: tuda-ci [1511k] (54230 -> 54878) ...
>done
>> [38/48, 05:13/06:03] update: univie-ling [2182k] (49785 -> 54966) ...
>done
>> [39/48, 05:21/05:53] update: xcjk2uni [324k] (50848 -> 54958) ...
>done
>> [40/48, 05:30/06:00] update: xecjk [1802k] (53835 -> 54961) ... done
>> [41/48, 05:38/05:53] update: xepersian-hm [207k] (54816 -> 54962) ...
>done
>> [42/48, 05:46/06:00] update: xlop [540k] (42899 -> 54936) ... done
>> [43/48, 05:53/06:03] update: xpinyin [406k] (50849 -> 54959) ... done
>> [44/48, 06:00/06:07] update: zhnumber [282k] (50850 -> 54960) ...
>> [45/48, 06:53/06:58] auto-install: biblatex-software (54950) [292k]
>... done
>> [46/48, 06:58/07:01] auto-install: jlreq-deluxe (54894) [349k] ...
>done
>> [47/48, 07:19/07:19] update: collection-bibtexextra [2k] (54297 ->
>54875) ... done
>> [48/48, 07:23/07:23] update: collection-langjapanese [1k] (54074 ->
>54894) ... done
>> running mktexlsr ...
>> done running mktexlsr.
>> running mtxrun --generate ...
>> done running mtxrun --generate.
>> running updmap-sys ...
>> done running updmap-sys.
>> regenerating fmtutil.cnf in C:/TeX/Live/2020/texmf-dist
>> running fmtutil-sys
>--no-error-if-no-engine=luajithbtex,luajittex,mfluajit --byfmt uplatex
>...
>> done running fmtutil-sys
>--no-error-if-no-engine=luajithbtex,luajittex,mfluajit --byfmt uplatex.
>
>etc.